The feeling of embarrasment or anxiety when, while playing songs on shuffle on your iPod in front of a group of people, a guilty pleasure song, or one you would prefer people didnt know you listened to, comes on. The owner of the iPod will then try to make bullshit excuses as to why they have that song, half-heartedly defend the song's presence in their library, or quickly switch the song. Usually the startled DJ will do a combination of the 3.
While Pete and his friends were driving in the car listening to Pete's iPod, suddenly, the latest Jonas Brothers hit single came on, causing Pete iPod Anxiety Effect

Pete-"Oh dude, that's my sister's song I think she must have downloaded it or some shit on my computer..."

Tony- "Bro you dont have a sister."
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